Operation Guide 5286 (OC)
E-7
Contents
E-2 About This Manual
E-3 Crown Operations
E-5 Things to check before using the watch
E-10 Charging the Watch
E-13 To recover from the sleep state
E-14 Radio Controlled Atomic Timekeeping
E-16 To get ready for a receive operation
E-18 To perform manual receive
E-19 To check the result of the latest receive operation
E-19 To turn auto receive on and off
E-21 Mode Reference Guide
E-23 Timekeeping (Dual Time Mode)
E-24 Confi guring Home City Settings
E-24 To confi gure Home City settings
E-27 To switch between standard time and summer time manually
E-28 Confi guring Current Time and Date Settings Manually
E-28 To change the current time and date setting manually
E-6
3. Set the current time.
x To set the time using a time calibration signal
See “To get ready for a receive operation” (page E-16).
x To set the time manually
See “Confi guring Current Time and Date Settings Manually” (page E-28).
The watch is now ready for use.
x For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic
Timekeeping” (page E-14).
E-5
Things to check before using the watch
1. Observe the movement of the
x
Second Hand.
Is the
x
Second Hand moving smoothly at one-second intervals?
Is the
x
Second Hand moving at two-second
intervals or is it stopped completely?
Go to step 2.
The watch is charged. For details about
charging, see “Charging the Watch”
(page E-10).
Power is low. Charge the watch by placing it in a
location where it is exposed to light. For details,
see “Charging the Watch” (page E-10).
NO
YES
YES
NEXT
2. Check the Home City.
Use the procedure under “To confi gure Home City settings” (page E-24) to confi gure your Home City.
Important!
x Proper time calibration signal reception depends on correct Home City, time, and date settings in the
Dual Time Mode. Make sure you confi gure these settings correctly.
E-4
To start HS1 high-speed movement
While the crown is pulled out, rotate it rapidly three turns away from you (for
forward movement) or towards you (for reverse movement). High-speed
movement will continue even if you release the crown.
To start HS2 high-speed movement
While HS1 high-speed movement is progress, again rotate the crown rapidly
three turns in the same direction as the current HS1 movement (away from you
for forward movement or towards you for reverse movement).
To stop high-speed movement
Rotate the crown in the direction that is opposite that of the current high-speed
movement or press any button.
Important!
x Leaving the crown pulled out for more than two minutes (approximately 30 minutes in the case of hand
home position adjustment) without performing any operation will automatically cause crown operations
to become disabled. If this happens, press the crown back in, pull it out, and then start the operation
over again.
E-3
Crown Operations
The crown can be pulled out to one of two (click) positions. Never apply undue force when pulling out the
crown.
Important!
x In order to ensure full water resistance and to prevent damage due to impact, make sure that the crown
is normally pushed in fully when using the watch.
x When pulling out the crown, avoid using undue force, which creates the risk of personal injury to your
fi ngers and fi ngernails, and of watch malfunction.
First click Second click
High-speed Movement
When setting a time or when performing home position adjustment (page E-44), you can move the hands
either forward or back at high speed. There are two high-speed levels: HS1 and HS2 (faster than HS1).
E-2
About This Manual
Operations are performed using the watch’s crown, and the three buttons
indicated by the letters A, B and C in this manual.
Hand Functions
z
z Hour Hand
x
x Second Hand
c
c Minute Hand
v
v Hour Hand (24-hour)
b
b Small Minute Hand
n
n Small Hour Hand
m
m Small Hour Hand (24-hour)
,
, Lower Dial Hand
.
. Day Indicator
This User’s Guide uses numbers shown above to identify watch hands and
indicators.
Hand and Date Indicator Movement
x The movement of the
x
Second Hand and
c
Minute Hand of this watch are coordinated. To change
the
c
Minute Hand setting, you will need to move the
x
Second Hand.
x
.
Day Indicator movement is also coordinated with
z
Hour Hand movement. To change the
.
Day
Indicator setting, you will need to move the
z
Hour Hand.
+@ *> B
5 6
E-1
ENGLISH
Congratulations upon your selection of this CASIO watch.
x Note that the product illustrations in this manual are intended for reference only, and so the actual
product may appear somewhat different than depicted by an illustration.
This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of
this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland,
Canada.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by
you or any third party arising through the use of this product or its malfunction.
MA1301-EA
Ú
#!3)/#/-054%2#/,4$
Operation Guide 5286 (OC)
E-15
Approximate Reception Ranges
Japanese Signals Chinese Signal
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/
Saga
1,500 kilometers
Changchun500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainfl ingen
The Anthorn signal is receivable
within this area.
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
E-14
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings
manually as required. See “Confi guring Current Time and Date Settings Manually” (page E-28) for more
information.
This section explains how the watch updates its time settings when the city code selected as the Home
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal
reception.
If your Home City Code setting is this:
The watch can receive the signal from the transmitter
located here:
LONDON (LON), PARIS (PAR), ATHENS (ATH) Anthorn (England), Mainfl ingen (Germany)
HONG KONG (HKG) Shangqiu City (China)
TOKYO (TYO) Fukushima (Japan), Fukuoka/Saga (Japan)
NEW YORK (NYC), CHICAGO (CHI),
DENVER (DEN), LOS ANGELES (LAX),
ANCHORAGE (ANC), HONOLULU (HNL)
Fort Collins, Colorado (United States)
Important!
x The areas covered by HONOLULU (HNL) and ANCHORAGE (ANC) are quite far from the calibration
signal transmitters, so certain conditions may cause reception problems.
E-13
x The above times are for reference only. Actual times depend on lighting conditions.
x For details about the operating time and daily operating conditions, see the “Power Supply” section of
the Specifi cations (page E-54).
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area
where it is dark. The table below shows how watch functions are affected by Power Saving.
Elapsed Time in Dark Operation
Approximately 1 week
x All hands stopped at 12 o’clock
x Internal timekeeping maintained
To recover from the sleep state
Move the watch to a well-lit area or press any button.
E-12
x When power drops to Level 3, all settings (including timekeeping) will be cleared. Recharging the
battery will reset all settings to their initial factory defaults, so you will need to confi gure settings again.
x When the watch is at Level 3, exposing it to light for a while will cause the
x
Second Hand to move to
the position of second 57. This indicates that charging has started.
Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation temporarily whenever
power suddenly drops below a certain level due to continuous signal reception, or overuse of the alarm
tone over a short period or other operations over a short period. Note that all operations are disabled
while the watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal operation after power
recovers (in about 15 minutes). Putting the watch in a location where it is exposed to light will help power
to recover sooner.
Charging Times
Exposure Level (Brightness)
Daily
Operation *1
Level Change *2
Level 3 Level 2 Level 1
Outdoor sunlight (50,000 lux) 8 minutes 2 hours 23 hours
Window sunlight (10,000 lux) 30 minutes 6 hours 86 hours
Window sunlight on cloudy day (5,000 lux) 48 minutes 9 hours 139 hours
Indoor fl uorescent lighting (500 lux) 8 hours 94 hours – – –
* 1 Approximate exposure each day to generate power for normal daily operation.
* 2 Approximate exposure to take power up one level.
E-11
Important!
x Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps
to ensure that power does not run down.
x Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is
blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to
bright light whenever possible.
Power Levels
You can get an idea of the watch’s power level by observing the movement of
the
x
Second Hand.
x If the
x
Second Hand is moving normally at one-second intervals, power is
at Level 1.
x If the
x
Second Hand is moving at two-second intervals, power is at Level 2,
which is quite low (Low battery alert). Expose the watch to light as soon as
possible so it can charge.
Level Hand Movement Function Status
1 Normal. All functions enabled
2
x
x
Second Hand moves at
two-second intervals.
Beeper, time calibration signal
reception, countdown timer
operation, and home position
adjustment disabled
3
All hands stopped at 12 o’clock.
.
.
Day Indicator between 31 and 1.
All functions disabled
Moves at two-second
intervals.
+
@
B
E-10
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed
to light.
Charging Guide
Whenever you are not
wearing the watch, be sure
to leave it in a location where
it is exposed to light.
x Best charging
performance is achieved
by exposing the watch to
light that is as strong as
possible.
When wearing the watch, makes
sure that its face is not blocked
from light by the sleeve of your
clothing.
x The watch may enter a sleep
state (page E-13) if its face is
blocked by your sleeve even
only partially.
Warning!
Leaving the watch in bright light for charging can cause it to become quite hot. Take care when
handling the watch to avoid burn injury. The watch can become particularly hot when exposed to
the following conditions for long periods.
x On the dashboard of a car parked in direct sunlight
x Too close to an incandescent lamp
x Under direct sunlight
E-9
E-44 Adjusting the Hand and Day Home Positions
E-46 To adjust the hand and day home positions
E-48 Troubleshooting
E-53 Specifi cations
E-8
E-32 Checking the Current Time in a Different Time Zone
E-32 To enter the Dual Time Mode
E-32 To view the time in another time zone
E-34 To swap your Home City and World Time City
E-35 Using the Stopwatch
E-35 To enter the Stopwatch Mode
E-35 To measure elapsed time
E-36 To measure split times
E-37 Auto Start
E-37 To enter the Stopwatch Mode
E-37 To set the Auto Start Time
E-38 To start an Auto Start operation
E-39 Using the Countdown Timer
E-39 To enter the Countdown Timer Mode
E-40 To specify the countdown start time
E-40 To perform a countdown timer operation
E-41 To stop the alarm
E-42 Using the Alarm
E-42 To enter the Alarm Mode
E-42 To change the alarm time setting
E-43 To turn the alarm on or off
E-43 To stop the alarm
Operation Guide 5286 (OC)
E-23
Timekeeping (Dual Time Mode)
To enter the Dual Time Mode, hold down C at least two seconds.
Hand Functions
z
z Hour Hand
x
x Second Hand
c
c Minute Hand
v
v Hour Hand (24-hour)
b
b Small Minute Hand: World Time minute hand
n
n Small Hour Hand: World Time hour hand
m
m Small Hour Hand (24-hour): World Time 24-hour hand
,
, Lower Dial Hand: Indicates the current day of the week.
.
. Day Indicator
x Pressing A causes the
x
Second Hand to move to the current Home City
for about one second.
x The
.
Day Indicator will change gradually between approximately 10 p.m.
and 2 a.m. During this period the number indicating the day will not be
centered in the indicator window.
+@ *> B
5 6
E-22
Dual Time Mode Stopwatch Mode
Alarm Mode Countdown Timer Mode
Indicates the day of the
week (Su/Mo/Tu/We/Th/
Fr/Sa).
Indicates the 1/20 (0.05)
second count.
Indicates ON or OFF. Indicates TR.
C
C
C
C
x You can return to the Dual Time Mode from any other mode by holding down C for at least two
seconds.
E-21
Mode Reference Guide
Your watch has four “modes”. The mode you should select depends on what you want to do.
Use C to cycle between modes.
To do this: Enter this mode: See:
x View the current time and date in your Home City
x Confi gure Home City and summer time (DST) settings
x Receive the time calibration signal automatically
x Manually adjust the time or date setting
Any Mode E-23
x View the current time in one of 29 other cities around the globe
x Perform manual time calibration signal reception
x View reception results
x Turn auto time calibration signal reception on or off
x Confi gure World Time City and summer time settings
x Swap the Home City and World Time City
Dual Time Mode E-23
x Use the stopwatch to measure elapsed time
x Use Auto Start
Stopwatch Mode E-35
Use the countdown timer Countdown Timer Mode E-39
Set an alarm time Alarm Mode E-42
E-20
4. Rotate the crown to move the
x
Second Hand to the setting you want.
x To turn on auto receive, select Y (YES).
x To turn off auto receive, select N (NO).
5. Push the crown back in to return to the Dual Time Mode.
Radio-controlled Atomic Timekeeping Precautions
x Strong electrostatic charge can result in the wrong time setting.
x Even if a receive operation is successful, certain conditions can cause the time setting to be off by up
to one second.
x The watch is designed to update the date and day of the week automatically for the period from
January 1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be
performed starting from January 1, 2100.
x If you are in an area where signal reception is not possible, the watch keeps time with the precision
noted in “Specifi cations” (page E-53).
x The receive operation is disabled under any of the following conditions.
− While power is at Level 2 or Level 3 (page E-11)
− While the watch is in the power recovery mode (page E-12)
− While the watch is in the sleep state (power saving, page E-13)
x A receive operation is cancelled if an alarm sounds while it is being performed.
E-19
To check the result of the latest receive operation
1. Hold down C for at least two seconds to enter the Dual Time Mode (page
E-23).
2. Press B.
x The
x
Second Hand will move to Y (YES) if the latest receive operation
was successful, or N (NO) if it was not. After about ten seconds, regular
timekeeping will resume.
x You can return to the Dual Time Mode manually by pressing any button
while the
x
Second Hand is pointing to Y (YES) or N (NO).
Note
x The
x
Second Hand will indicate N (NO) if you have adjusted the time or
date setting manually since the latest receive operation.
To turn auto receive on and off
1. Hold down C for at least two seconds to enter the Dual Time Mode (page
E-23).
2. Press B.
3. During the 10 seconds that the
x
Second Hand is pointing to the latest
receive operation result (see above), pull out the crown to the fi rst click.
x This will cause the
x
Second Hand to point to either Y (YES) or N (NO),
which indicates the current on/off setting.
x Leaving the crown pulled out for more than two minutes without
performing any operation will automatically cause crown operations to
become disabled. If this happens, press the crown back in, pull it out,
and then start the operation over again.
@
Y (YES)
N (NO)
@
Y (YES)
N (NO)
E-18
To perform manual receive
1. Hold down C for at least two seconds to enter the Dual Time Mode (page E-23).
2. Hold down B for at least two seconds.
x The
x
Second Hand will fi rst indicate the last receive results as either Y (YES) or N (NO), and then
move to RC (R) (Receive in progress) to indicate that signal reception has started.
3. The watch’s time setting is adjusted automatically whenever a receive
operation is successful.
Note
x The current time indication may become out of sync by two or three minutes
while a receive operation is in progress. Correct indication will resume after
the receive operation is complete. If you need to produce a correct time
reading immediately, press any button to stop the receive operation.
x If reception fails for some reason, check the surrounding area and eliminate
possible causes for failure and then try again. See “To get ready for a
receive operation” (page E-16).
@
Y (YES)
N (NO)
E-17
x Signal reception may be diffi cult or even impossible under the conditions described below.
Inside or among
buildings
Inside a vehicle Near household
appliances,
offi ce
equipment, or a
mobile phone
Near a
construction
site, airport, or
other sources of
electrical noise
Near high-
tension power
lines
Among
or behind
mountains
3. What you should do next depends on whether you are using Auto Receive or Manual Receive.
x Auto Receive: Leave the watch over night in the location you selected in step 2.
x Manual Receive: Perform the operation under “To perform manual receive” on page E-18.
Important!
x With Auto Receive, the watch performs the receive operation each day automatically up to six times
(up to fi ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. When any
receive operation is successful, none of the other receive operations for that day are performed.
x Calibration signal reception is disabled in the following cases.
− While an elapsed time operation is in progress in the Stopwatch Mode
− While a timer operation is in progress
− While Auto Receive is turned off
− While the crown is pulled out
E-16
x Signal reception may not be possible at the distances noted below during certain times of the year or
day. Radio interference may also cause problems with reception.
− Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
− Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
− Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
− Shangqiu (China) transmitter: 500 kilometers (310 miles)
x As of June 2012, China does not use Daylight Saving Time (DST). If China does go to the Daylight
Saving Time system in the future, some functions of this watch may no longer operate correctly for the
China time zones.
x Using this watch in a country covered by a time calibration signal that is different from the countries it
supports may result in incorrect time indication due to local application of summer time, etc.
To get ready for a receive operation
1. Confi rm that the watch is in the Dual Time Mode. If it isn’t, hold down C at least two seconds to enter
the Dual Time Mode.
2. Place the watch in a location where signal reception is good.
12 o’clock
or
x Position the watch as shown in the nearby illustration,
with 12 o’clock pointed towards a window. Make sure
there are no metal objects nearby.
x Signal reception normally is better at night.
x The receive operation takes from two to 10 minutes, but
in some cases it can take as long as 20 minutes. Take
care that you do not perform any button operation or
move the watch during this time.
Operation Guide 5286 (OC)
E-31
9. Press C. This will enter the year setting mode.
x The
n
Small Hour Hand indicates the number that represents the
tens digit of the year and the
b
Small Minute Hand indicates the
number that represents the ones digit.
10. Rotate the crown to adjust the year setting.
11. After the settings are the way you want, push the crown back in to
return to the mode you started from in step 1.
x This causes timekeeping to resume with the
x
Second Hand
starting from 12 o’clock.
x The day of the week indicated by the
,
Lower Dial Hand changes
automatically in accordance with the date (year, month, and day).
Note
x The watch’s built-in full automatic calendar makes allowances for
different month lengths and leap years. Once you set the date, there
should be no reason to change it except after you have the watch’s
rechargeable battery replaced or after power drops to Level 3.
*
01
2
3
4
9
8
657
Setting the year (ones digit)
6
00 10
20
30
40
90
80
60 5070
Setting the year (tens digit)
E-30
7. Press C to enter the month setting mode.
x The
x
Second Hand will move to the currently selected month.
8. Rotate the crown to adjust the month setting.
@
Dec
Nov
Feb
Mar
Apr
Oct
Sep
Aug
Jan
Jul May
Jun
Setting the month
E-29
Home City/DST Minute Hour/Day
Year
C
Month
C
C
C
C
4. Rotate the crown to adjust the minute setting.
x A high-speed movement feature (one full cycle maximum) is available when adjusting the hands.
See “Crown Operations” (page E-3).
5. Press C.
x The
z
Hour Hand will move slightly left and right to indicate the hour and day setting mode.
6. Rotate the crown to change the current hour and day settings.
x Keep rotating the crown to move the
z
Hour Hand until the
.
Day Indicator shows the day you
want.
x The
.
Day Indicator will change gradually between 10 p.m. and 2 a.m. During this period the
number indicating the day will not be centered in the indicator window.
x While changing the hour setting, you can determine whether the setting is a.m. or p.m. by watching
the
.
Day Indicator as the
z
Hour Hand passes 12 o’clock.
x A high-speed movement feature (one full cycle maximum) is available when adjusting the hands.
See “Crown Operations” (page E-3).
E-28
Confi guring Current Time and Date Settings Manually
You can confi gure current time and date settings manually when the watch is unable to receive a time
calibration signal.
To change the current time and date setting manually
1. In any mode, pull out the crown to the second click.
x This will cause the
x
Second Hand to move to the city code of
the currently selected Home City.
x Leaving the crown pulled out for more than two minutes without
performing any operation will automatically cause crown
operations to become disabled. If this happens, press the
crown back in, pull it out, and then start the operation over
again.
2. Change the Home City setting, if you want.
x To change the Home City setting, perform step 2 under “To
confi gure Home City settings” (page E-24).
3. Hold down C for about one second. This will enter the time and
date setting mode.
x The watch will beep and the
x
Second Hand will move to
12 o’clock.
x In the following steps, each press of C cycles between
settings as shown below.
@
TOKYO (TYO)
@B
E-27
To switch between standard time and summer time manually
1. Perform steps 1 and 2 under “To confi gure Home City settings” (page E-24).
x Displaying the Home City Settings screen will cause the
,
Lower Dial Hand
to move to AT (AUTO) (auto switching), STD (standard time), or DST (daylight
saving time).
AT (AUTO)
The watch automatically switches between standard time and daylight
saving time in accordance with its calendar.
STD The watch always shows standard time.
DST The watch always shows daylight saving time.
2. Hold down A for about one second to cycle through the summer time settings as
shown below.
AA
AT (AUTO) STD DST
A
3. After the setting is way you want, push the crown back in.
E-26
STD/DST Switching
You can select summer time or standard time independently for each city. The initial default setting for all
cities is AT (AUTO).
Normally you should use the AT (AUTO) setting because it automatically switches between summer time
and standard time. You should change the setting to STD (standard time) or DST (summer time) in the
following cases.
− When using the watch in a city not included in the City Code Table
− When the switching dates in your location are different from those shown in the City Code Table
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time.
Remember that not all countries or even local areas use Daylight Saving Time.
x Note that you cannot switch between STD (standard time) and DST (daylight saving time) while UTC*
is selected as your Home City.
* Coordinated Universal Time, the world-wide scientifi c standard of timekeeping. The reference point for
UTC is Greenwich, England.
E-25
2. Rotate the crown to move the
x
Second Hand to the city code
you want to select as your Home City.
x Each time you select a city code, the
z
Hour Hand,
c
Minute
Hand and
.
Day Indicator move to the current time and date
for that city code.
x Whenever you move the
x
Second Hand to 12 o’clock while
selecting a city code, it will automatically perform one full
revolution and stop at 12 o’clock from the opposite direction.
x The
,
Lower Dial Hand shows the summer time setting for the
currently selected Home City.
3. Push the crown back in to return to the mode you started from
in step 1.
+B
@
E-24
Confi guring Home City Settings
The Home City is location where you will normally use the watch. You can choose from a selection of city
codes that represent 29 cities around the globe.
x For information about specifying a World Time City, see “Checking the Current Time in a Different Time
Zone” (page E-32).
To confi gure Home City settings
Note
x This watch does not have a city code that corresponds to
Newfoundland.
1. In any mode, pull out the crown to the second click.
x This will cause the
x
Second Hand to move to the city code of
the currently selected Home City.
x This indicates the city code setting mode.
x Leaving the crown pulled out for more than two minutes without
performing any operation will automatically cause crown
operations to become disabled. If this happens, press the
crown back in, pull it out, and then start the operation over
again.
x For details about city codes, see the “City Code Table” at the
back of this manual.
@
TOKYO (TYO)
Operation Guide 5286 (OC)
E-39
Using the Countdown Timer
The countdown timer can be confi gured within a range of one minute to 120 minutes. An alarm sounds for
about 10 seconds when the timer reaches zero.
Hand Functions
b
b Small Minute Hand: Indicates countdown seconds.
n
n Small Hour Hand: Indicates countdown minutes (1 revolution = 60
minutes).
m
m Small Hour Hand (24-hour): Indicates countdown minutes (1 revolution =
120 minutes).
,
, Lower Dial Hand: Points to TR.
x All hands move counterclockwise during a countdown.
To enter the Countdown Timer Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Countdown Timer Mode will cause the
,
Lower Dial Hand to
move to TR.
*
5 6
E-38
2. Rotate the crown to specify the Auto Start time seconds setting.
x You can use high-speed movement (page E-3) when performing the above step.
x Changing the seconds setting will also cause the minutes setting to change.
3. Press C.
4. Rotate the crown to specify the Auto Start time minutes setting.
x You can use high-speed movement (page E-3) when performing the above step.
5. Push the crown back in.
To start an Auto Start operation
1. In the Stopwatch Mode with the elapsed time reset to all zeros, press B.
x This causes the
b
Small Minute Hand,
n
Small Hour Hand, and
m
Small Hour Hand (24-hour) to
move to the current Auto Start time.
x Press B to toggle between the normal stopwatch screen and the Auto Start time screen.
2. While the Auto Start time is indicated by the hands, press A.
x This starts the countdown from the Auto Start time.
x For information about button operations after the Auto Start starts elapsed time measurement, see
“To measure elapsed time” (page E-35) and “To measure split times” (page E-36).
Note
x To interrupt the countdown and immediately start the elapsed time operation, press A.
x You can perform all normal stopwatch button operations after the elapsed time operation starts.
x Auto Start is turned off automatically when you reset the stopwatch to all zeros after the current elapsed
time operation. However, you can recall the last Auto Start time you set by pressing B.
E-37
Auto Start
Auto Start starts a countdown from a specifi ed start time (Auto Start time), and automatically starts
elapsed time measurement when the countdown reaches zero.
Hand Functions
b
b Small Minute Hand: Auto Start seconds
n
n Small Hour Hand: Auto Start minutes (0 to 60)
m
m Small Minute Hand (24-hour): Auto Start minutes (0 to 119)
To enter the Stopwatch Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Stopwatch Mode will cause the
,
Lower Dial Hand to move
to 0.
To set the Auto Start Time
x You can specify an Auto Start time within the range of 0 to 119 minutes and
59 seconds.
1. In the Stopwatch Mode, pull out the crown to the fi rst click.
x If you do not perform any operation with the crown for about two minutes
after pulling it out, crown operations will become disabled and the watch
hands will no longer move when you rotate the crown. If this happens,
push the crown back in and then pull it out again.
6
5 *
E-36
To measure split times
A
B
Display of normal
measurement returns after
5 seconds.
A B
Start Split Stop Reset
x Pressing B again while a split time is indicated will cause the hands to jump to a new (current) split
time.
x Pressing A while a split time is indicated will stop the elapsed time operation, causing the hands to
jump to the stop time.
Note
x The Stopwatch Mode can indicate elapsed time up to 1 hour, 59 minutes, 59.95 seconds. Elapsed time
measurement will stop automatically when the maximum time is reached.
x The display illustration on page E-35 shows a stopwatch reading of 20 minutes, 45.10 seconds.
x Pressing B will not perform a reset operation while the hands are moving to elapsed timekeeping after
you enter the Stopwatch Mode.
x The
,
Lower Dial Hand indicates the 1/20 (0.05)-second count for the fi rst 30 seconds of a stopwatch
elapsed time operation. The
x
Second Hand will jump to the current value whenever A (Stop) is
pressed.
E-35
Using the Stopwatch
The stopwatch measures elapsed time and split times.
Hand Functions
b
b Small Minute Hand: Indicates the stopwatch seconds count.
n
n Small Hour Hand: Indicates the stopwatch minute count
(1 revolution = 60 minutes).
m
m Small Hour Hand (24-hour): Indicates the stopwatch minute count
(1 revolution = 120 minutes).
,
, Lower Dial Hand: Indicates the 1/20 (0.05)-second count during stopwatch
operation.
To enter the Stopwatch Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Stopwatch Mode will cause the
,
Lower Dial Hand to move
to 0.
To measure elapsed time
A
A B
Start Stop Reset
x Pressing A to restart the stopwatch without resetting it will resume the elapsed time operation from
where it was last stopped.
6
5 *
E-34
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time City. This capability can come
in handy when you frequently travel between two locations in different time zones.
The following example shows what happens when the Home City and World
Time City are swapped while the Home City originally is TOKYO (TYO) and
the World Time City is NEW YORK (NYC).
Home City World Time City
Before swapping
TOKYO (TYO)
10:08 p.m.
(Standard time)
NEW YORK (NYC)
9:08 a.m.
(Daylight saving time)
After swapping
NEW YORK (NYC)
9:08 a.m.
(Daylight saving time)
TOKYO (TYO)
10:08 p.m.
(Standard time)
To swap your Home City and World Time City
Hold down A for about three seconds.
x This will make the World Time City (NEW YORK in this example) your new Home City. At the same
time, it will change your previous Home City to your new World Time City.
x The x
x
Second Hand will point to the new Home City (NEW YORK in this example) for about one
second.
Note
x If your current World Time City supports time calibration signal reception, making it your Home City
enables calibration signal reception for that city.
@
E-33
2. Rotate the crown to move the
x
Second Hand to the city code you want to select as the World Time
City.
x Each time you select a city code, the
b
Small Minute Hand,
n
Small Hour Hand, and
m
Small Hour
Hand (24-hour) move to the current time. For details about city codes, see the “City Code Table” at
the back of this manual.
x Whenever you move the
x
Second Hand to 12 o’clock while selecting a city code, it will
automatically perform one full revolution and stop at 12 o’clock from the opposite direction.
x If you think that the time indicated for the selected World Time City is not correct, it probably means
that there is something wrong with your Home City settings. Use the procedure under “To confi gure
Home City settings” (page E-24) to correct the Home City settings.
3. Hold down A for about one second to cycle through the summer time settings as shown below.
x Selecting AT (AUTO) enables automatic switching between standard time and summer time. For
details about the AT (AUTO), STD and DST settings, see “STD/DST Switching” (page E-26).
AA
AT (AUTO) STD DST
A
4. Push the crown back in.
E-32
Checking the Current Time in a Different Time Zone
You can specify one other city from the watch’s 29 time zones as your World Time City. After you do, the
watch will indicate display the current time in that city. The currently selected city is called the “World Time
City”.
Hands and Indicators
The hands below indicate the current time in the World Time City.
b
b Small Minute Hand
n
n Small Hour Hand
m
m Small Hour Hand (24-hour)
To enter the Dual Time Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Dual Time Mode will cause the
,
Lower Dial Hand to
move to the current day of the week (Su/Mo/Tu/We/Th/Fr/Sa).
To view the time in another time zone
1. In the Dual Time Mode, pull out the crown to the fi rst click
x The
x
Second Hand points to the currently selected World Time city code.
x The
,
Lower Dial Hand will indicate AT (AUTO), STD (standard time) or DST (daylight saving time),
which indicates the current daylight saving time setting.
x Leaving the crown pulled out for more than two minutes without performing any operation will
automatically cause crown operations to become disabled. If this happens, press the crown back in,
pull it out, and then start the operation over again.
*
5 6
@
Operation Guide 5286 (OC)
E-47
4. Press C.
x Check if the
b
Small Minute Hand is stopped at 12 o’clock.
x If the position of the
b
Small Minute Hand is not correct, rotate
the crown to adjust it to 12 o’clock.
5. Press C.
x Check if the
n
Small Hour Hand is stopped at 12 o’clock.
x If the position of the
n
Small Hour Hand is not correct, rotate
the crown to adjust it to 12 o’clock.
x The
m
Small Hour Hand (24-hour) moves simultaneously with
the
n
Small Hour Hand. If the hands are not at 12 o’clock,
advance the
n
Small Hour Hand until they do.
6. Press C.
x Check if the
,
Lower Dial Hand is stopped at 12 o’clock.
x If the position of the
,
Lower Dial Hand is not correct, rotate
the crown to adjust it to 12 o’clock.
7. Push the crown back in.
This exits the adjustment mode and returns to normal timekeeping.
Important!
x Leaving the crown pulled out for more than approximately 30 minutes without performing any operation
will automatically cause the adjustment operation to become disabled. If this happens, push the crown
back in and then pull it out to restart the above procedure from the beginning.
x Pushing the crown in will return to the mode you started from in step 1 with the hands and/or day in
their newly adjusted positions.
+ *B
5 6
E-46
To adjust the hand and day home positions
Important!
x You do not need to perform the procedure in this section if the watch is indicating the time and/or day
correctly.
1. In any mode, pull the crown out to the second click.
2. Hold down B until the watch beeps and the
x
Second Hand
moves to 12 o’clock. This takes about fi ve seconds.
x Release B when the
x
Second Hand gets to 12 o’clock. At this
time the watch will start automatic adjustment of the
x
Second
Hand,
c
Minute Hand, and
z
Hour Hand positions.
x Adjustment is complete when the
x
Second Hand,
c
Minute
Hand, and
z
Hour Hand move to 12 o’clock.
3. Press C.
x This will cause the
z
Hour Hand and
.
Day Indicator to move.
x Wait until the
.
Day Indicator stops at a position halfway
between 31 and 1.
x If the
.
Day Indicator is not halfway between 31 and 1, rotate
the crown until it is.
x Rotating the crown causes the
z
Hour Hand to move in 12-
hour increments, and the
.
Day Indicator to move in half-day
increments.
@B
+
E-45
Hand/Day Adjustment Steps
For full details, see the procedure from page E-46 to E-47.
Pull crown out to second click.
x
Second Hand
c
Minute Hand
z
Hour Hand
.
Day Indicator
n
Small Hour Hand
B
C
C
C
(Until
x
Second Hand indicates 12 o’clock)
C
b
Small Minute Hand
,
Lower Dial Hand
Auto Adjustment
Manual Adjustment
x After completing adjustment, push the crown back in. Pushing the crown back in part way through
adjustment will return to the mode you started from with any adjustments you made in effect.
E-44
Adjusting the Hand and Day Home Positions
If the watch is exposed to strong magnetism or impact, it can cause its hands and/or the date to go out of
alignment. This can result in incorrect date and/or time indication even though a time calibration signal is
being received.
The watch automatically adjusts the
x
Second Hand,
c
Minute Hand, and
z
Hour Hand positions
periodically. You also can trigger hand position adjustment manually, if you want.
x The
v
Hour Hand (24-hour) is adjusted simultaneously with the
z
Hour Hand.
If you notice that the
b
Small Minute Hand,
n
Small Hour Hand,
m
Small Hour Hand (24-hour),
,
Lower
Dial Hand, or
.
Day Indicator are not in the correct position, perform manual adjustment.
x The
m
Small Hour Hand (24-hour) is adjusted simultaneously with the
n
Small Hour Hand.
E-43
3. Press C.
x This causes the
n
Small Hour Hand to move.
4. Rotate the crown to set the alarm time hour.
x Movement of the
m
Small Hour Hand (24-hour) is synchronized with movement of the
n
Small Hour
Hand.
x The 12 o’clock position of the
m
Small Hour Hand (24-hour) indicates 24:00, while the 6 o’clock
position indicates 12:00.
Note
x Each press of the C button toggles between the alarm time minute setting and the hour setting.
C
Minute Hour
x Selecting the minute setting causes the
b
Small Minute Hand to move slightly. Selecting the hour
setting causes the
n
Small Hour Hand to move slightly.
5. Push the crown back in.
x The alarm always works based on the time kept by the watch.
To turn the alarm on or off
In the Alarm Mode, press A to toggle the alarm between on and off. The
,
Lower Dial Hand will indicate
the current ON/OFF setting.
To stop the alarm
Press any button.
E-42
Using the Alarm
When the alarm is turned on, an alarm will sound for about 10 seconds each day when the current time
kept by the watch reaches the preset alarm time. This is true even if the watch is not in the Alarm Mode.
Hand Functions
b
b Small Minute Hand: Indicates the currently set alarm time minute.
n
n Small Hour Hand: Indicates the currently set alarm time hour.
m
m Small Hour Hand (24-hour): Indicates the currently set alarm time in 24-
hour format.
,
, Lower Dial Hand: Indicates the current alarm ON/OFF setting.
To enter the Alarm Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Alarm Mode will cause the
,
Lower Dial Hand to move to ON
or OFF.
To change the alarm time setting
1. In the Alarm Mode, pull out the crown to the fi rst click.
x If you do not perform any operation with the crown for about two minutes after pulling it out, crown
operations will become disabled and the watch hands will no longer move when you rotate the
crown. If this happens, push the crown back in and then pull it out again.
2. Rotate the crown to set the alarm time minute.
x A high-speed movement feature (one full cycle maximum) is available in steps 2 and 4 when
adjusting the hands. See “Crown Operations” (page E-3).
*
5 6
E-41
x Before starting a countdown timer operation, check to make sure that the countdown timer is not
already operating (indicated by a moving
b
Small Minute Hand). If it is, press A to stop it and then B
to reset to the countdown start time.
x Pulling out the crown while a countdown operation is in progress will stop the ongoing operation so you
can change the countdown start time setting.
To stop the alarm
Press any button.
E-40
To specify the countdown start time
1. In the Countdown Timer Mode, pull out the crown to the fi rst click.
x If you do not perform any operation with the crown for about two minutes
after pulling it out, crown operations will become disabled and the watch
hands will no longer move when you rotate the crown. If this happens,
push the crown back in and then pull it out again.
2. Rotate the crown to set the countdown start time.
x You can use high-speed movement (page E-3) when performing the above
step.
x To set a start time of 60 minutes, position the
n
Small Hour Hand at
12 o’clock and the
m
Small Hour Hand (24-hour) at 6 o’clock. To set
a start time of 120 minutes, position the
n
Small Hour Hand and the
m
Small Hour Hand (24-hour) at 12 o’clock.
3. Push the crown back in.
To perform a countdown timer operation
A
A B
Start Stop Reset
x Pressing B while the Countdown Timer is stopped resets the displayed time to the start time specifi ed
by you.
x Pressing B will not perform a reset while the hands are moving to the current timer time after you enter
the Countdown Timer Mode.
*
5 6
Operation Guide 5286 (OC)
L-1
City Code Table
E-54
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 5 months (no exposure to light after a full charge; one signal
reception of approximately 4 minutes, and 10 seconds of alarm operation per day)
E-53
Specifi cations
Accuracy at normal temperature: ±15 seconds a month (with no signal calibration)
Timekeeping : Hour, minutes, seconds, 24-hour, day, day of the week
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City and World Time City can be assigned one of 29 city codes (29 time zones) and
Coordinated Universal Time; Daylight Saving Time (summer time)/Standard Time auto switching
Time Calibration Signal Reception: Auto receive up to six times a day (5 times a day for the Chinese
calibration signal; Remaining auto receives cancelled as soon as one is successful);
Manual receive
Receivable Time Calibration Signals:
Mainfl ingen, Germany (Call Sign: DCF77, Frequency: 77.5 kHz); Anthorn, England (Call
Sign: MSF, Frequency: 60.0 kHz); Fukushima, Japan (Call Sign: JJY, Frequency: 40.0
kHz); Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60.0 kHz); Fort Collins, Colorado,
the United States (Call Sign: WWVB, Frequency: 60.0 kHz); Shangqiu City, Henan
Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
Stopwatch: Measuring capacity: 1:59'59.95"
Measuring unit: 1/20 (0.05) seconds
Measuring modes: Elapsed time, Split time
Other: Auto-Start
Countdown Timer:
Measuring unit: 1 second
Input range: 1 to 120 minutes (1-minute increments)
Alarm: Daily alarm
Other: Power Saving; Low battery alert; Auto Correction of Hand Home Positions
E-52
■ Signal reception is being performed successfully, but the time and/or day is wrong.
Possible Cause Remedy Page
Your Home City setting is wrong.
Check your Home City setting and correct it, if
necessary.
E-14
E-24
The watch may have been exposed to magnetism
or strong impact, which has caused problems with
proper hand and day alignment.
Adjust the watch’s hand and day home positions. E-44
Alarm
■ The alarm does not sound.
Possible Cause Remedy Page
Battery power is low.
Expose the watch to light until battery power is
back to normal.
E-10
The crown is pulled out. Push the crown back in. E-3
Crown Operation
■ Nothing happens when I rotate the crown.
Possible Cause Remedy Page
The crown has been left pulled out for more than
two minutes (30 minutes in the case of hand home
position adjustment) without any operation being
performed.
Push the crown back in and then pull it out again to
restore normal operation.
E-3
E-51
■ The current time setting is off by one hour.
Possible Cause Remedy Page
The period when summer time is applied in the
location where you are using the watch may be
different from the period set for your currently
selected Home City.
Use the procedure under “To switch between
standard time and summer time manually” to switch
from AT (AUTO) to STD (for standard time) or DST
(for summer time).
E-27
■ Auto Receive is not performed or I cannot perform Manual Receive.
Possible Cause Remedy Page
Your Home City setting is wrong.
Check your Home City setting and correct it, if
necessary.
E-14
E-24
Auto Receive is disabled because there is an
ongoing elapsed time operation or Auto Start
countdown operation in the Stopwatch Mode.
Stop the ongoing Stopwatch Mode operation. E-35
A countdown timer operation is in progress.
Both Auto Receive and Manual Receive are
disabled while a countdown is in progress. If you
want to perform Auto Receive, go to the Countdown
Timer Mode, stop the timer operation, and then
return to the Dual Time Mode.
E-39
The Auto Receive function is turned off. Turn on Auto Receive. E-19
The crown is pulled out. Push the crown back in. E-3
There is not enough power for signal reception. Expose the watch to light to charge it. E-10
E-50
Time Calibration Signal
The information in this section applies only when LONDON (LON), PARIS (PAR), ATHENS (ATH),
HONOLULU (HNL), ANCHORAGE (ANC), LOS ANGELES (LAX), DENVER (DEN), CHICAGO (CHI),
NEW YORK (NYC), HONG KONG (HKG), or TOKYO (TYO) is selected as the Home City. You need to
adjust the current time manually when any other city is selected as the Home City.
■ The
x
Second Hand indicates N (NO) when I check the result of the latest receive operation.
Possible Cause Remedy Page
x You are wearing or moving the watch, or
performing a button operation during the signal
receive operation.
x The watch is in an area with poor reception
conditions.
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
E-16
An alarm sounded while time signal reception was
in progress.
Try again later. —
You are in an area where signal reception is not
possible for some reason.
See “Approximate Reception Ranges”. E-15
The calibration signal is not being transmitted for
some reason.
x Check the website of the organization that
maintains the time calibration signal in your area
for information about its down times.
x Try again later.
—
■ The current time setting changes after I set it manually.
You may have the watch confi gured for Auto Receive of the time calibration signal (page E-17), which will
cause the time to be adjusted automatically according to your currently selected Home City. If this results
in the wrong time setting, check your Home City setting and correct it, if necessary (page E-24).
E-49
■ The current time setting is off by one hour.
x If you are using the watch in an area where time calibration signal reception is possible, see “To
confi gure Home City settings” (page E-24).
x The period when summer time is applied in the location where you are using the watch may be
different from the period set for your currently selected Home City. Use the procedure under “To switch
between standard time and summer time manually” (page E-27) to switch from AT (AUTO) to STD (for
standard time) or DST (for summer time).
■ The hands and/or day indications are off.
This could indicate that the watch has been exposed to magnetism or strong impact, which has caused
problems with proper hand and day alignment. Adjust the watch’s hand and day home position alignment
(page E-44).
■ Data indication is correct, but it is not in the middle of the day indicator.
The
.
Day Indicator will change gradually between approximately 10 p.m. and 2 a.m. each day. If the
date is misaligned during this period, it is only momentarily and does not indicate malfunction. If you
change your Home City setting while the current time in the new Home City is between approximately
10 p.m. and 2 a.m., the date may become misaligned momentarily.
Charging
■ The watch does not resume operation after I expose it to light.
It can take quite a long time to charge the battery after the power level drops to Level 3 (page E-11). Continue
exposing the watch to light until the
x
Second Hand starts moving normally (at one-second intervals).
■ The
x
Second Hand starts to move at one-second intervals, but then suddenly returns to moving
at two-second intervals.
The watch probably is not suffi ciently charged yet. Continue keeping it exposed to light.
E-48
Troubleshooting
Hand Movement and Position
■ I lost track of what mode the watch is in.
Refer to “Mode Reference Guide” (page E-21). To return directly to the Dual Time Mode, hold down C for at
least two seconds.
■ The
x
Second Hand is moving at two-second intervals.
■ All the watch’s hands are stopped at 12 o’clock and none of the buttons work (
x
Second Hand
stopped at 57, 58, 59, or 00).
Power may be low. Expose the watch to light until the
x
Second Hand starts moving normally, at one-
second intervals (page E-11).
■ The hands of the watch suddenly start moving at high speed, even when I do not perform any
operation.
This could be due to any one of the following causes. In all cases, the hand movement does not indicate
malfunction, and should stop shortly.
x The watch is recovering from a sleep state (page E-13).
x The time setting is being adjusted following a successful auto time calibration signal receive operation
(page E-14).
■ Hands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode (page E-12). Do not perform any operation until the hands
return to their normal positions (in about 15 minutes). The hands should return to their correct positions when
normal operation returns. To help power recover, leave the watch in a location where it is exposed to light.
■ The current time setting is off by hours.
x Your Home City setting may be wrong. Check your Home City setting and correct it, if necessary (page
E-24).
Operation Guide 5286 (OC)
L-3
City Code City
UTC Offset/
GMT Differential
Summer Time Period
Summer Time Start Summer Time End
DUBAI (DXB) Dubai +4
None None
KABUL (KBL) Kabul +4.5
KARACHI (KHI) Karachi +5
DELHI (DEL) Delhi +5.5
DHAKA (DAC) Dhaka +6
YANGON (RGN) Yangon +6.5
BANGKOK (BKK) Bangkok +7
HONG KONG
(HKG) Hong Kong +8
TOKYO (TYO) Tokyo +9
ADELAIDE (ADL) Adelaide +9.5
02:00, fi rst Sunday in
October
03:00, fi rst Sunday in April
SYDNEY (SYD) Sydney +10
NOUMEA (NOU) Noumea +11 None None
WELLINGTON
(WLG) Wellington +12
02:00, last Sunday in
September
03:00, fi rst Sunday in April
x Based on data as of June 2012.
x The rules governing global times (UTC offset and GMT differential) and summer time are determined
by each individual country.
x The summer time periods in this table are applicable to specifi c cities. For cities not included in the
list, select the list city that is in the same time zone as the desired city and perform STD/DST settings
manually.
L-2
City Code Table
City Code City
UTC Offset/
GMT Differential
Summer Time Period
Summer Time Start Summer Time End
PAGO PAGO (PPG) Pago Pago –11
None None
HONOLULU (HNL) Honolulu –10
ANCHORAGE
(ANC) Anchorage –9
02:00, second Sunday
in March
02:00, fi rst Sunday in
November
LOS ANGELES
(LAX) Los Angeles –8
DENVER (DEN) Denver –7
CHICAGO (CHI) Chicago –6
NEW YORK (NYC) New York –5
SANTIAGO (SCL) Santiago –4
24:00, second Saturday in
October
24:00, second Saturday
in March
RIO Rio De Janeiro –3
0:00, third Sunday in
October
0:00, third Sunday in
February or 0:00, fourth
Sunday in February
F. DE NORONHA
(FEN)
Fernando de Noronha
–2
None NonePRAIA (RAI) Praia –1
UTC
0
LONDON (LON) London
01:00, last Sunday in
March
02:00, last Sunday in
October
PARIS (PAR) Paris +1
02:00, last Sunday in
March
03:00, last Sunday in
October
ATHENS (ATH) Athens +2
03:00, last Sunday in
March
04:00, last Sunday in
October
JEDDAH (JED) Jeddah +3 None None
TEHRAN (THR) Tehran +3.5
0:00, March 22 or
0:00, March 21
0:00, September 22 or
0:00, September 21
/